1. Of the three major categories of elements (metals, non
... They are called groups or families. 12. What are the horizontal rows on the periodic table called? They are called periods. 13. Explain the relationship between elements in the same group. They have similar chemical and physical properties because each one has the same number of valence electrons. ...
... They are called groups or families. 12. What are the horizontal rows on the periodic table called? They are called periods. 13. Explain the relationship between elements in the same group. They have similar chemical and physical properties because each one has the same number of valence electrons. ...
Lesson Outline - WordPress.com
... up 80.22%. What is the average atomic mass of Boron? 2. Silver has two isotopes, the first has a mass of 106.9 u and an abundance of 51.8%, the second has a mass of 108.9 u and an abundance of 48.2. What is the average atomic mass of ...
... up 80.22%. What is the average atomic mass of Boron? 2. Silver has two isotopes, the first has a mass of 106.9 u and an abundance of 51.8%, the second has a mass of 108.9 u and an abundance of 48.2. What is the average atomic mass of ...
Physical Science Chapter 3 Test
... their properties will emerge in a regular pattern. 12. Because atoms of elements in the same group of the periodic table have the same number of ____________________, they have similar properties. 13. Some elements are highly ____________________ because their outermost energy levels are only partia ...
... their properties will emerge in a regular pattern. 12. Because atoms of elements in the same group of the periodic table have the same number of ____________________, they have similar properties. 13. Some elements are highly ____________________ because their outermost energy levels are only partia ...
Atomic Theory of Matter: matter is made up of fundamental particles
... Dalton learned about atoms by studying the ratios in which elements combine in chemical reactions. 1. All matter is made up of _________________. 2. Atoms are _______________________ and ___________________________. [Not true: subatomic particles] 3. a) Atoms of the same element are ________________ ...
... Dalton learned about atoms by studying the ratios in which elements combine in chemical reactions. 1. All matter is made up of _________________. 2. Atoms are _______________________ and ___________________________. [Not true: subatomic particles] 3. a) Atoms of the same element are ________________ ...
Darlington High School EDI Lesson Plan Teacher: L. Grooms
... PS 2.5 Predict the charge that a representative element will acquire according to the arrangement of electrons in its outer energy level. Check for Understanding: ...
... PS 2.5 Predict the charge that a representative element will acquire according to the arrangement of electrons in its outer energy level. Check for Understanding: ...
COS 1.0, 1.1, 1.2, 1.3
... • organization makes it easier to predict properties of an element based on where it is in periodic table • Elements are listed in order of number of protons ...
... • organization makes it easier to predict properties of an element based on where it is in periodic table • Elements are listed in order of number of protons ...
Lesson x- Review W14 answers
... pudding -discovered charge in the atom Rutherford -atoms are mostly empty space (where electrons are) with a dense positive centre (nucleus) -used the gold foil experiment to discover the nucleus; most particles went through, few bounced back Bohr -atoms have a dense nucleus surround by shells (ener ...
... pudding -discovered charge in the atom Rutherford -atoms are mostly empty space (where electrons are) with a dense positive centre (nucleus) -used the gold foil experiment to discover the nucleus; most particles went through, few bounced back Bohr -atoms have a dense nucleus surround by shells (ener ...
Atomic Structure
... Different atoms have different ____________ and ____________ The differing properties of matter are due to the size, shape, and movement of ____________ Changes in matter result from changes in the ____________ of atoms and not the atoms themselves ...
... Different atoms have different ____________ and ____________ The differing properties of matter are due to the size, shape, and movement of ____________ Changes in matter result from changes in the ____________ of atoms and not the atoms themselves ...
Extension 18.2: Isotopes
... Naturally-occurring hydrogen, 99.985% of it, is 1 H, and the rest, 0.015%, is deuterium, ...
... Naturally-occurring hydrogen, 99.985% of it, is 1 H, and the rest, 0.015%, is deuterium, ...
The Periodic Table - Harlan Independent Schools
... find the radioactive radium (Ra). While radium is not found around your house anymore, it used to be used in glow-in-thedark paints. The other elements are found in many items including fireworks, batteries, flashbulbs, and special alloys. The lighter alkaline earth metals such as magnesium and calc ...
... find the radioactive radium (Ra). While radium is not found around your house anymore, it used to be used in glow-in-thedark paints. The other elements are found in many items including fireworks, batteries, flashbulbs, and special alloys. The lighter alkaline earth metals such as magnesium and calc ...
Topic 2.1- The Nuclear Atom
... • same element but differ in their number of neutrons • the atomic mass on periodic table is the WEIGHTED AVERAGE MASS of “all” the isotopes of that element – this is based on an isotope’s natural abundance • the percentage of each isotope of an element that occurs in nature ...
... • same element but differ in their number of neutrons • the atomic mass on periodic table is the WEIGHTED AVERAGE MASS of “all” the isotopes of that element – this is based on an isotope’s natural abundance • the percentage of each isotope of an element that occurs in nature ...
Year 11 Chemistry Balancing Equations
... Looking over your electron configurations, are there any elements above that have similar valence electron configurations to those of other elements? If so, list below the elements that are similar (in terms of valence electrons) and state the similarity for each of the groups. ...
... Looking over your electron configurations, are there any elements above that have similar valence electron configurations to those of other elements? If so, list below the elements that are similar (in terms of valence electrons) and state the similarity for each of the groups. ...
Name Period ______ Unit 4 Study Guide A common isotope of iron
... The lowest energy level can hold ________ electrons. A repeating pattern across a row of the periodic table is called…. The noble gases such as helium and xenon do not form chemical bonds with other elements because they: Most metals are ________________ (choose one: ductile, brittle, poor conductor ...
... The lowest energy level can hold ________ electrons. A repeating pattern across a row of the periodic table is called…. The noble gases such as helium and xenon do not form chemical bonds with other elements because they: Most metals are ________________ (choose one: ductile, brittle, poor conductor ...
Another look at chemical reactions HYDROGEN PEROXIDE WATER
... Example: Helium has an atomic number of 2. Every helium atom has two protons in its nucleus. - MASS NUMBER: The number of protons PLUS the number of neutrons in the atomic nucleus, Atoms of the same element may have DIFFERENT mass numbers. - ISOTOPES: are atoms of the same element with different mas ...
... Example: Helium has an atomic number of 2. Every helium atom has two protons in its nucleus. - MASS NUMBER: The number of protons PLUS the number of neutrons in the atomic nucleus, Atoms of the same element may have DIFFERENT mass numbers. - ISOTOPES: are atoms of the same element with different mas ...
CHEMISTRY The Molecular Science
... • An element is composed of tiny particles called atoms. All atoms of a given element show the same chemical properties. • Atoms of different elements have different properties. • Compounds are formed when atoms of two or more elements combine. In a given compound, the relative number of atoms of ea ...
... • An element is composed of tiny particles called atoms. All atoms of a given element show the same chemical properties. • Atoms of different elements have different properties. • Compounds are formed when atoms of two or more elements combine. In a given compound, the relative number of atoms of ea ...
The Periodic Table
... Said properties of unknown elements could be predicted by the properties of elements around the missing element ...
... Said properties of unknown elements could be predicted by the properties of elements around the missing element ...
Ions and Isotopes - Mr. Kleiman`s Wiki
... Remember: There are 3 sub-atomic particles; protons, electrons and neutrons. Change the number of protons and you change the element Change the number of electrons and you create an ion Question: What happens when you change the number of neutrons? Sometimes atoms either gain or lose neutrons. S ...
... Remember: There are 3 sub-atomic particles; protons, electrons and neutrons. Change the number of protons and you change the element Change the number of electrons and you create an ion Question: What happens when you change the number of neutrons? Sometimes atoms either gain or lose neutrons. S ...
Atoms and the Periodic Table
... • Nonmetals: halogens, noble (inert) gases, C, N, O, P, S, Se • Semiconductors ...
... • Nonmetals: halogens, noble (inert) gases, C, N, O, P, S, Se • Semiconductors ...
Trends in the Periodic Table
... ionization energy will increase. • You will see large increases in ionization energies when a noble gas configuration is reached. • Example Li+ has the same electron configuration as He so you will see a large jump between the first and second ionization energies. ...
... ionization energy will increase. • You will see large increases in ionization energies when a noble gas configuration is reached. • Example Li+ has the same electron configuration as He so you will see a large jump between the first and second ionization energies. ...
Chemistry - Mr. Card
... electronic cloud – are in constant motion Protons have almost 2000 times as much mass as electrons ...
... electronic cloud – are in constant motion Protons have almost 2000 times as much mass as electrons ...
The Periodic Table
... He noticed the same “periodic” pattern as Newlands. By arranging the elements in order of increasing atomic mass into columns with similar properties Mendeleev credited the first periodic table. He predicted the properties of scandium, gallium, and germanium. ...
... He noticed the same “periodic” pattern as Newlands. By arranging the elements in order of increasing atomic mass into columns with similar properties Mendeleev credited the first periodic table. He predicted the properties of scandium, gallium, and germanium. ...
Topic 3 Review
... whole-number ratios to form chemical compounds. 5. In chemical reaction, atoms are combined, separated, or rearranged. ...
... whole-number ratios to form chemical compounds. 5. In chemical reaction, atoms are combined, separated, or rearranged. ...
Atoms - Science with Mrs. Schulte
... Atomic mass The average mass of all the isotopes (different types) of an element ...
... Atomic mass The average mass of all the isotopes (different types) of an element ...